Adrian’s mind is in the right place with regards to more artistic variation. Beveling several vertices at once is a interesting approach! I can definitely see how that would be faster in theory. However, as Adrian pointed out, without manually modifying each one to look unique the effect would be too consistent for a quality result.
That said this kind of situation is where you as the artist can choose the approach that works best for you. Since there’s always several methods to do the same thing in Blender, exercising your liberty and exploring new methods is entirely encouraged! Following instructions is not how 3D artists expand their capabilities. Using instructions as an introduction – an open door if you will – and transcending them is how one expands their capabilities 👍
